Home / 2,804.89-4,200.41-2,090.80

Finding the Fourth Proportional to 2,804.89, 4,200.41 and 2,090.80

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Solution

The fourth proportional to 2,804.89, 4,200.41 and 2,090.80 is: 3,131.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,804.89 : 4,200.41 = 2,090.80 : x
  2. Step 2: Convert to fraction form
    2,804.89/4,200.41 = 2,090.80/x
  3. Step 3: Cross multiply
    2,804.89x = 4,200.41 × 2,090.80
  4. Step 4: Simplify right side
    2,804.89x = 8,782,217.23
  5. Step 5: Solve for x
    x = 8,782,217.23/2,804.89
  6. Step 6: Final answer
    x = 3,131.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.